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Tile Detector Configurations Testing for the SPD Beam-Beam Counter Prototype 测试 SPD 光束-光束计数器原型的瓦片探测器配置
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/S1547477124701218
A. M. Zakharov, F. A. Dubinin, A. Yu. Isupov, V. P. Ladygin, A. D. Manakonov, G. A. Nigmatkulov, S. G. Reznikov, P. E. Teterin, A. V. Tishevsky, I. S. Volkov, A. O. Zhurkina
{"title":"Tile Detector Configurations Testing for the SPD Beam-Beam Counter Prototype","authors":"A. M. Zakharov,&nbsp;F. A. Dubinin,&nbsp;A. Yu. Isupov,&nbsp;V. P. Ladygin,&nbsp;A. D. Manakonov,&nbsp;G. A. Nigmatkulov,&nbsp;S. G. Reznikov,&nbsp;P. E. Teterin,&nbsp;A. V. Tishevsky,&nbsp;I. S. Volkov,&nbsp;A. O. Zhurkina","doi":"10.1134/S1547477124701218","DOIUrl":"10.1134/S1547477124701218","url":null,"abstract":"<p>The Spin Physics Detector is an experiment at NICA designed to study the spin structure of the proton and deuteron and other spin-related phenomena using polarized beams. Two Beam-Beam Counters (BBCs) will be installed symmetrically aside from the interaction point in the end-cups of SPD setup and will serve as a tool for beam diagnostics including local polarimetry. The outer part of the BBC wheel is based on fast scintillator tiles and cover the polar angels between 60 and 500 mrad. Different material configurations for the BBC prototype based on scintillator tiles were tested. The light collection depends on material combinations—fiber (Saint Gobain BCF91AS, BCF92S, and Kuraray Y-11), tile surface cover (Matted and double covered with Tyvek sheets tiles), and optical cement (CKTN mark E, OK-72). SensL 1 <span>( times )</span> 1 mm<sup>2</sup> and 3 <span>( times )</span> 3 mm<sup>2</sup> SiPMs were used as photosensors in the prototype tiles. The studies were performed with a cosmic rays test setup equipped with CAEN FERS-5200 readout system.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"21 4","pages":"735 - 738"},"PeriodicalIF":0.4,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of the Online Data Processing System for the BM@N Experiment at NICA 为日本国际协力事业团的 BM@N 试验开发在线数据处理系统
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s154747712470136x
E. Alexandrov, I. Alexandrov, A. Chebotov, I. Filozova, K. Gertsenberger, I. Romanov, G. Shestakova
{"title":"Development of the Online Data Processing System for the BM@N Experiment at NICA","authors":"E. Alexandrov, I. Alexandrov, A. Chebotov, I. Filozova, K. Gertsenberger, I. Romanov, G. Shestakova","doi":"10.1134/s154747712470136x","DOIUrl":"https://doi.org/10.1134/s154747712470136x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A huge amount of experimental data should be collected, stored and processed in large modern high-energy physics experiments, including the experiments of the NICA (Nuclotron-based Ion Collider fAcility) project at the Joint Institute for Nuclear Research. In this regard, corresponding performance requirements are put forward for existing online systems. The online data processing system developed for the BM@N experiment within the NICA project is based on a distributed architecture, enabling it to meet high performance requirements through scalability and parallel computing. The purpose of the online system is selective data processing (conversion to event digits in the CERN ROOT format and fast event reconstruction) and data monitoring of the ongoing experiment. To achieve this goal, the FairMQ package implemented by the FAIR collaboration (GSI Institute, Germany) has been chosen to communicate distributed processes executed on the nodes of the computing infrastructure with each other through the exchange of their messages. One of the issues in developing and using such systems is the problem of the distributed run and control of the processes. The task has been solved by using the FAIR DDS (Dynamic Deployment System) toolkit. The BM@N online system starts the predefined software tasks in a required sequence and allows managing them during sessions, including the transmission of messages between the tasks and the update of some properties. The paper presents the purposes and architecture of the Online Data Processing System for the BM@N experiment and features of the current implementation.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"12 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring of the Efficiency of the IRT-T Reactor Heat Exchanger System by Machine Learning Method 用机器学习方法监测 IRT-T 反应堆热交换器系统的效率
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701413
M. Kublinskiy, N. Smolinkov, A. Naimushin
{"title":"Monitoring of the Efficiency of the IRT-T Reactor Heat Exchanger System by Machine Learning Method","authors":"M. Kublinskiy, N. Smolinkov, A. Naimushin","doi":"10.1134/s1547477124701413","DOIUrl":"https://doi.org/10.1134/s1547477124701413","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper presents a study aimed at studying and evaluating the possibility of using machine learning in methods of predictive analysis of the operation of the cooling system of the IRT-T reactor. Machine learning is a subspecies of artificial intelligence used in large-volume data analytics. The currently existing methods of processing data on technological parameters are imperfect and do not allow predicting the development of operational events. The proposed approach will allow not only to centrally collect data on technological parameters, but also to output an analysis of possible outcomes and recommendations for changing operating modes.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"36 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calculation of the Spectrum of Interaction Model with Macromolecules by the Method of Finding Symmetries 用寻找对称性的方法计算与大分子相互作用模型的频谱
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701437
A. Kharlamova, D. Makarov
{"title":"Calculation of the Spectrum of Interaction Model with Macromolecules by the Method of Finding Symmetries","authors":"A. Kharlamova, D. Makarov","doi":"10.1134/s1547477124701437","DOIUrl":"https://doi.org/10.1134/s1547477124701437","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A method of theoretical modeling of the spectrum of interaction of an ultrashort laser pulse with a DNA macromolecule is presented. The method is based on the search for symmetric regions in the structure under study and makes it possible to reduce the calculation time for polyatomic objects.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"2016 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Eliducating the Distinctions between Open-State Monomers and Dimers of Human Tissue Transglutaminase 阐明人类组织传导谷氨酰胺酶开放状态单体和二聚体之间的区别
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701450
S. D. Ivashchenko, A. V. Vlasov
{"title":"Eliducating the Distinctions between Open-State Monomers and Dimers of Human Tissue Transglutaminase","authors":"S. D. Ivashchenko, A. V. Vlasov","doi":"10.1134/s1547477124701450","DOIUrl":"https://doi.org/10.1134/s1547477124701450","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Transglutaminase 2 (TG2) is a pivotal enzyme involved in various biological processes such as wound healing, apoptosis, and cell differentiation. Depending on the environmental conditions, TG2 can adopt two distinct conformations: the open and closed states. Notably, the open conformation of TG2 has been associated with the pathogenesis of several diseases, including celiac disease and certain cancers. Recent investigations have demonstrated that within human cells, open-state TG2 can exist both as monomers and as dimers. The monomeric form primarily exhibits transamidation activity, whereas the dimeric form is postulated to exert cytotoxic effects. While several structures of the monomeric open-state TG2 are available in the Protein Data Bank, structures representing the dimeric form remain elusive. The objective of this study is to elucidate the structural distinctions between TG2 monomers and dimers using small-angle X-ray scattering (SAXS).</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"16 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Follow-Up Analysis and Visualization of Multimessenger Data for Baikal-GVD 贝加尔-全球气温变化观测站多信使数据的后续分析和可视化
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701401
A. A. Semeniuk, V. Y. Dik, T. V. Elzhov, A. A. Kulikov, I. A. Perevalova, O. V. Suvorova
{"title":"Follow-Up Analysis and Visualization of Multimessenger Data for Baikal-GVD","authors":"A. A. Semeniuk, V. Y. Dik, T. V. Elzhov, A. A. Kulikov, I. A. Perevalova, O. V. Suvorova","doi":"10.1134/s1547477124701401","DOIUrl":"https://doi.org/10.1134/s1547477124701401","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Modern astronomy aims to study the astrophysical objects with the various types of signals incoming from them. To achieve the goals of the multi-messenger astronomy, experiments should exchange data, that can be done with the alert messages. Alert contains essential information about the detected event. These messages are distributed via international networks facilitating the rapid follow-up of transient astrophysical phenomena. The Baikal-GVD alert system receives external alerts and applies different methods to search for signal coincidences. For better understanding of the alert system workflow and researching of the astrophysical neutrino sources the alert visualization is necessary. This work deals with the techniques that are used within the coincidence search process and the visualization of the alerts: Baikal-GVD alerts and external messages from experiments like the IceCube neutrino telescope, Fermi gamma-ray telescope and LIGO/Virgo/KAGRA gravitational observatories.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"14 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prototype of a Track Scintillation Detector Based on SiPM Matrices 基于 SiPM 矩阵的轨道闪烁探测器原型
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701231
V. V. Ustinov, O. V. Kutinova, D. G. Sakulin, E. V. Sukhov, D. V. Ustinov
{"title":"Prototype of a Track Scintillation Detector Based on SiPM Matrices","authors":"V. V. Ustinov, O. V. Kutinova, D. G. Sakulin, E. V. Sukhov, D. V. Ustinov","doi":"10.1134/s1547477124701231","DOIUrl":"https://doi.org/10.1134/s1547477124701231","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A prototype of a track scintillation detector has been developed, which is based on a cubic plastic scintillator with dimensions of 100 × 100 × 100 mm<span>(^{3})</span>. The detector is intended for imaging particle tracks using an array of SiPM photodetectors. The measurement methodology, the experimental stand, and the results obtained are presented.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"122 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Extraction System Adaptation for MSC230 Cyclotron Final Engineering Design 用于 MSC230 回旋加速器的提取系统最终工程设计
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701279
L. D. Sedov, D. V. Popov, I. D. Lyapin, S. V. Gurskiy
{"title":"The Extraction System Adaptation for MSC230 Cyclotron Final Engineering Design","authors":"L. D. Sedov, D. V. Popov, I. D. Lyapin, S. V. Gurskiy","doi":"10.1134/s1547477124701279","DOIUrl":"https://doi.org/10.1134/s1547477124701279","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>JINR is developing а novate cyclotron for proton therapy (including FLASH) for new JINR’s international biomedical research center. The project is about to be put into manufacturing stage. As unavoidable parts of this process, engineering, mechanical, and production limitations impose correction on the physical conceptual design of the cyclotron. Therefore, the initial extraction system, consisting of an electrostatic deflector followed by two magnetic channels with their compensators, was adjusted accordingly to the new model and improved for upcoming manufacturing stage.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"41 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of the Nature of Chelating Agents on the Activity and Structural Pre-Organization of Metal Oxide Catalysts for the Growth of Carbon Nanotubes Synthesized by the Method of Polymerized Complex Precursors 螯合剂性质对采用聚合络合前驱体法合成的碳纳米管生长用金属氧化物催化剂的活性和结构预组织的影响
IF 0.5
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/s1547477124701280
O. Yu. Poliakova, A. P. Prudchenko, Yu. S. Protasevich
{"title":"Influence of the Nature of Chelating Agents on the Activity and Structural Pre-Organization of Metal Oxide Catalysts for the Growth of Carbon Nanotubes Synthesized by the Method of Polymerized Complex Precursors","authors":"O. Yu. Poliakova, A. P. Prudchenko, Yu. S. Protasevich","doi":"10.1134/s1547477124701280","DOIUrl":"https://doi.org/10.1134/s1547477124701280","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Metal oxide catalysts (MOCs) for the growth of carbon nanotubes with the general composition Fe<sub>2</sub>Co/CaCO<sub>3</sub> were synthesized by the polymerized complex precursor (PCP) method using chelating agents. It has been established that metal oxide catalysts synthesized by the method of polymerized complex precursors are an order of magnitude more effective than MOCs synthesized by the sol-gel technology. The productivity of MOCs obtained using two ligands is significantly higher than the efficiency of monoligand samples. As a result of the study, it was found that the use, in addition to carbohydrates, of a wide range of chelating agents of various natures (polyalcohols, hydroxy acids, amino acids, etc.) in the synthesis of metal oxide catalysts for the growth of CNTs by the method of polymerized complex precursors is advisable and makes it possible to affect the stage of preorganization of the structure of MOCs precursor, specific productivity of metal oxide catalysts as well as qualitative composition of carbon products.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"77 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142176847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Multiple Compton Process in a Strongly Magnetized Plasma 强磁化等离子体中的多重康普顿过程
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2024-08-14 DOI: 10.1134/S1547477124700754
T. A. Pukhov, D. A. Rumyantsev, M. V. Chistyakov
{"title":"The Multiple Compton Process in a Strongly Magnetized Plasma","authors":"T. A. Pukhov,&nbsp;D. A. Rumyantsev,&nbsp;M. V. Chistyakov","doi":"10.1134/S1547477124700754","DOIUrl":"10.1134/S1547477124700754","url":null,"abstract":"<p>The process of multiple Compton scattering, <span>(egamma to e(Ngamma ))</span>, is considered in a strongly magnetized, charge-asymmetric, cold electron-positron plasma. The special case of process—the Double Compton scattering is considered. The amplitudes for both processes are derived in the general case, where electrons can occupy arbitrary Landau levels. An expressions for the amplitude of the Double Compton process in the magnetar case have been obtained. The double Compton scattering under considered conditions is shown to be an efficient process for the production of polarized photons.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"21 4","pages":"604 - 606"},"PeriodicalIF":0.4,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142411762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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